Drilling-machine.



PATBIQTED MAR 8, 1904,

W.- P. KOEPPEN.

DRILLING MACHINE.

APPLIGATION mun 8762129, 1903.

N0 MODEL.

abtomwq 7 I l 1. I 1

PATENTED MAR. 8, 1904.

W. F. KOEP PEN.

DRILLING MACHINE.

APPLIOATIONPILBD SEPT. 29, 1903.

N0 MODEL.

2 SHEETS-SHEET 2.

Sum/whoa l vbtneoow 6-. ran/a1:

iUnirsn Smarts WILLIAM F. nonrrnu,

Patented March 8, 1904.

OF MARION. INDlASA.

DRELLENGQMACHINE.

SPECIFICATION forming part of Letters Patent No. 754,321, dated. March8, 1904.

Application filed September 29, 1903. Serial No. 175,048. (No model.)

To rtZl whorw it may concern.-

Be it known that 1, WILLIAM F. Konrrnn, of Marion, county of Grant, andState of indiana, have invented a certain new and usefulDrilling-Illachine; and i d hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, in which like figures refer to like parts.

This invention relates to drilling-machines especially adapted for usein the manufacture of molds for making hollow glassware, such as jarsand the like. In the manufacture of such molds itis necessary to drill alarge number of vent-holes in the molds to facilitate the blowingoperation by providing a ready means for the escape of theimprisonedair. At present tl )se holes are drilled in an ordinary speedlathe, which is a very tedious means, involving considerable time and alarge expenditu re because of broken drills.

The object oi my invention is to provide a simple means whereby thesebottle-molds may be clamped upon one part of the drill-frame and each ofthe various vent-holes, both large and small, being drilled with onesetting of the machine. This machine also does away with any greatlikelihood of broken drills.

An important feature and resultof my con-- struction is that it drillsfrom both directions and keeps both drills in line no matter at whatangle the work is done.

The full nature of this invention-will boundcrstood from the accompanying drawings and the following description and claims.

in the drawings, Figure l is a perspective view oi? the machine, showinga bottle-mold in position for drilling. Fig. 2, is a horizontal sectionof a portion immediately over the table, parts being; broken away. Fig.3 is a section of the mold, showing the holes therein a is a plan viewof the machine. 5 is a central longitudinal section of the feedingdevice which carries the small drill.

i5 is similar sectional View of the feeding device which carriesv thelarge drill. Fig. 7 is a detail of the disk on" which the drilli'rameturns.

in detail, 9 is a base formed of the casting, drill 11.

with a central hollow conical projection, in which-a standard or upright16 is rigidly secured. On this standard the mechanismis mounted.- In thefirst place 1 mount a table 13 on said standard by means of a pair ofclamping members integralwith the base that surround said standard andwhich are secured by a screw 55, as shown in Fig. 2.

The table is yertioally adjustable, on the standard 16 by loosening" thescrew 55, and when thus loosened the table is temporarily supported bythe screw-rod 14, that extends through a threaded aperture in thebracket 56 from the table, as shown in Figs. 1 and 2. Said screw-rod 14:is rotatably'mounted at its lower end in the conical portion of the baseandat the upper end is bent to form a crank, whereby it may be rotatedto elevate or lower the table 13 when the clamp thereon is released. asstated. When the table is moved to its desired position by the screw-rod14, it is again clamped rigidly in place on the standard.

Above the table 13 a sleeve-bracket 15 is loosely mounted on thestandard, so it can be turned, if desired. lt is splitat the back, andeach side has rearward]y-extending cars 17, that have a bolt 19extending through them, whereby said bracket may be tightened and heldstationary on. the standard 16 when desirable. integral with the frontside of the bracket 15 there is a circular vertically dis posed plate18, with central hole in it to receive the spindle 57, that extendscentrally from a disk 20. lar slot 22, through which headed screws 21extend loosely, that are secured in the disk to bring the drill orcontrolling mechanism.

into the desired position for work. Said plate 20 carries a splitsleeve-like bracket 24 intogral with the front face and disposedsnbstantially horizontal, in which a horizontal rod 25 is placed andclamped by the screw 23. This rod carries at its ends the brackets 26and 27, which are likewise clamped on said rod by the screws 28.

On the outer end of the bracket 26 there is a sleeve 38, through which atube 4'7 extends,

Plate 18 has in it an annuthat carries a shaft 49. that carries thelarge The tube 47 is longitudinally slidable in the sleeve 38 by meansof the lever 43, pivoted on an upwardly extending lug from the collar 46and is held on this pivot by a washer 45 and a headed screw 48, asappears in Fig. 6. Said lever is fulcrumed to the bar 44, that ispivoted to the arm 26. The inner end of the tube 47 is externallythreaded to receive the bearing-collar 51, which cooperates with thecollar 53, that is secured on the shaft 49 to form a ball-race for theballs 52. This arrangement makes a bearing to resist the end thrusts ofsaid sliaft while drilling.

The inner end of the shaft 49 is split to r'e-' ceive the drill 11 andis externally threaded for the nut 54 for clamping the split ends of theshaft to hold the drill. Said shaft 49 is driven by an ordinai'yflexible shaft This drilling mechanism just described is horizontallydisposed, and opposite it thereis anotherdrilling mechanism carried bythe arm 27. Said arm 27 has on its outer end a split sleeve 38, which isclamped about the tube 37 by a suitable screw, as shown in Fig. 5. Thistube 37 carries the shaft 34, in which the small drill 12 is mounted.There is a guide 36 forthe drill 12, that is mounted in the inner end ofthe tube 37 and surrounds the shaft 34 and extends inward beyond theshaft some dis tance, the inner end of said guide 36 enveloping thedrill to reinforce and guide the same. The tube 37 and the guide 36 arenot rotatable during the operation of the drill. This guide 36 may beadjusted so as to bring its inner end closer to the inner end of thedrill '12, if desired, by releasing the clamped or split sleeve 38 and'moving the tube 37 inward to bring about the proper position of theguide 36, and then said tube 37 is clamped again. The small drill is fedup to its Work by more sensitive mechanism than the large, drill. .Abranch arm 41 extends from the arm 27 and has an internallythreadedbearing for a threaded sleeve 40, that surrounds the turned down portionof the outer end of the shaft 3 1, as shown in Fig. 5. Said sleeve 4:0carriesa finger-wheel 39 for rotating the sleeve for feeding the shaft34 and the drill. A stop-block 42 is secured to the turned-down portionof the shaft outside of the finger-wheel 39, so that when the threadedsleeve 40 is turned backward it will withdraw the shaft 34 and the wheelfrom the worlr. This shaft 34: is driven by the flexible shaft 35. Asappears from the foregoing description, these drills 11 and 12 andtheir'holding and actuating mechanism are placed in opposing positions,so that'the drills will be on opposite sides of the mold 10,

- through which it is desired to drill holes.

These holes appearin Fig. 3 and consist of an outer enlarged portionthat is drilled by the large drill 11 and an innervery small portionthat is drilled by the small drill 12. For drilling these holes the re";.0 is clamped on the table 13 by the hen. wheel 31, that is connectedwith the screw which extends up the collar 46, the proper distance apartwh ch it is intended the small drill 12 shall penetrate, the mold 10 isthen clamped in place on the table 13, as shown, after the table 13 hasbeen raised or lowered by means of the screw-rod 14 to bring the mold inproper position vertically. The table 13 is then moved horizontally tobring the inner surface of the mold 10 in contact with the end of guide36 at a point in the mold 10 where a vent-hole is desired. The drill 11is then moved up by e lever 43 and the large portion of thehOI'iZ\,I1l?fll holes 29 are drilled. The drill 11 is then removed bythe lever 43, and the drill 12 is then fed ter the horizontal holes aredrilled if there are any oblique holes, such as the hole 62, thescrew-bolt 21 must be released and the shaft 25 tilted to bring thedrills in the desired oblique position. The bolt 21 is then tightenedand the oblique holes are drilled. It is thus observed that the drillscan be adjusted to varying positions so far as elevation iseoncerned,and the drill-holders can betilted so as to bring them into any obliqueposition desired. if it is desired to drill a plurality of holes on thesame levek'the position of the mold itself is then altered by releasingthe clamping-wheel 31, adjusting the position of the mold, andreclamping it in place. Consequently holes may be drilled through saidmold in any radial direction or in any horizontal or in any obliquedirection.

To adjust the drills for drilling holes of various positions vertically,instead of releasing the screw 23, as explained, the table 13 may beelevated or lowered by the screw-rod 14, so as to change the position ofthe drills to bring about the same result.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. A drilling-machine including means for.

holding the work stationary, opposing drillholders and actuators in linewith each other,

and means for mounting said drill-h6lders and actdators so that they maybe readily changed to various elevations and to various degrees ofobliquity.

2. A drillingachine including a standard, a. substantially orizontalrod, means for mounting said i od on said standard so that the rod maybe rotatable and also obi adjusted, suitable drills, and means for l ingand actuating said drills that are mounted therefrom parallel with eachother, su ,ble on said rod so as to be oppositely located and drills,and drill-holders and actuators mounted in line with each other. in theouter ends of said arms opposite to and 5 3. A drilling-machineincluding a round in line with each other. standard, a bracketreleasaloly clamped there- In witness whereof I have hereunto affixedonhaving on one side a vertically-disposed my signature in the presence ofthe witnesses gisk,1 anolthler disk rotatably mounted (on said hereinnamed. I

ra'c et-( is c, means or c amping sai rotatable disk in the desiredposition, a split sleeve W-ILLIAM carried by said rotatable disk, a rodcarried Witnesses: in said split sleeve whereby the same may be FRANK.BROWALEN, releasably clamped on said rod and extending MASON SPROAT.

